import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../views/Login.vue'
import Home from '../views/Home.vue'

Vue.use(VueRouter);

const routes = [
    {
        path: '/', //  / 和 * 区别   通配符
        redirect: "/login"
    },
    {
        path: '/login',
        name: 'Login',
        component: Login
    },
    {
        path: '/home',
        name: 'Home',
        component: Home
    },
]

const router = new VueRouter({
    routes
})

//挂载路由导航守卫,to表示将要访问的路径，from表示从哪里来，next是下一个要做的操作
router.beforeEach((to, from, next) => {
    // next();
    // next("/");
    // next(false);

    if(to.path === '/login') return next();
    //获取token
    const tokenStr = window.sessionStorage.getItem('token');
    if(!tokenStr) return next('/login');
    next();
});

export default router
